Inc.'s new line of sterile knob covers for surgical microscopes are made of
RadelÂ® R-5100 polyphenylsulfone (PPSU) resin from Solvay Advanced
The knob covers are extensions of the microscope handle and
are used to manipulate the microscope during surgery. The reusable covers come
in repeated contact with medical personnel and must be sterilized after each
procedure. Radel PPSU resin withstands repeated autoclaving - up to 1,000
cycles - while maintaining its toughness and impact resistance.
Injection molded Radel PPSU provides greater productivity
than competitive thermosets, boasting a 20-sec cycle time. The PPSU resin also
offers good processing stability, low shrinkage, and a tight-tolerance fit to
closely match the mating component. Another key feature is the material's high-quality
feel and surface appearance which lends the part a more premium look.
With a better understanding of materials’ response to load and temperature, researchers could potentially use the knowledge to improve design. The research could even help geologists studying plate tectonics.
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